YS

Yohta Sakon

Ricoh Company: 2 patents #165 of 863Top 20%
Overall (2004): #33,506 of 270,089Top 15%
2
Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6706459 Electrophotographic drum-shaped photoconductor and image forming method and apparatus using the same Narihito Kojima, Ryuta Takeichi, Akiyo Nakajima, Hiroshi Nagame 2004-03-16
6686114 Electrophotographic image forming method and apparatus Hiroshi Nagame, Narihito Kojima, Hiroshi Ikuno 2004-02-03